Internal oil-cooled piston valve



Feb. 6, 1923. 1,444,13Q. s. MUNSON,

INTERNAL OIL COOLED PISTON VALVE.

FILED MAY 23. 1921. 2 SHEETSTSHELT 1.

INVENTOR. ,5 $176 6; Wax/250221 A TTORNEY.

Feb. 6, 1923.

S. IVIUNSON.

INTERNAL OIL COOLED PISTON VALVE.

Z SHEET SHEET 2- FILED MAY 23, 192].

A TTORNE Y.

tPaltented Feb. 6, i923.

Marian SWJENEY IVIU'NSON, OF FOWLER, COLORADO.

. INTERNAL OIIlL-COOLED PISTON VALVE.

Application filed May as,

' To all 10 ham it may concern Be it known that I, SWENEY MUNsoN, a citizen of the United States, residing at Fowler, in the county of ()tero and State of Colorado, have invented certain new and useful Improvements in Internal Oil-Cooled Piston Valves, of which the following is a specification.

This invention appertains to internal oil cooled valves generally, and more particularly to a piston type of such valves, adapted for use on internal combustion engines and the like, and especially where such valves are subjected to extremely high temperatures.

The principal object of the invention is to provide for a valve construction of the character mentioned, and one embodying a novel means for feeding oil to the interior of the valve body continuously throughout the operation'of'the engine to which the valve is applied, whereby to effect a cooling of the valve throughout such operation as aforesaid.

Another object of the invention is to provide a valve as characterized, and one where in, in addition to the oil cooling feature thereof, a relatively small amount of the cooling oil from the valve body is delivered from the latter in a manner to lubricate the interior of the valve casing or bore in which the valve body is operably mounted.

With the fOregOiIig and other objects in view, the invention resides in the certain novel and useful construction and arrange ment of parts as will be hereinafter more fully described, set forth in the appended claims, and illustrated in the accompanying drawings, in which:-

Figure 1 is a fragmentary vertical section taken on the line 1-1 of Fig. 2,

Fig. 2 is a fragmentary vertical section taken on the line 22 of Fig. 1, and showing the valve thereof at one end position of its movement,

Fig. 3 is a fragmentary vertical section similar to Fig. 2, but showing the exhaust valve at the other end position of its movement, and,

Fig. 4 is a plan view of the exhaust valve, and showing the inlet port thereof for the admitting of the oil cooling medium to the interior thereof.

Referring to the drawings wherein similar characters of reference designate corre- 1921. Serial No. 471,826.

sponding parts in the several views thereof, and more particularly to Fig. 1, the numeral 10 indicates a cylinder of an internal combustion engine or the like having a head block 11 formed to provide an intake valve bore 12 and an exhaust valve bore 12, which bores are preferably disposed in a plane at right angles to that of the bore of the cylin der 10, and in parallel relation one with respect to the other, and opening outwardly at one side thereof. Slidably mounted in the bores 12 and 12 are hollow valve bodies 13 and 13, respectively, which are adapted to be reciprocated correspondingly for the control of the discharge of fuel charges into the cylinder and for the exhausting of the exploded gases therefrom, after the manner now obtaining in engines of the type illustrated.

In the carrying out of the purposes of the present invention, both of the valve bodies 13 and 13 are to be cooled in the manner described for the same, but in this instance, and for the sake of clearness of description, only the specific construction of the exhaust valve 13 and the cooling operation of the same will be dealt with, and referring more particularly to Figs. 2 and 4, inclusive, this valve 13 has its outer end arranged to pivotally receive, as at 14, the connected end of an eccentric arm 15, which is clamped at its opposite or outer end on a circular eccentric or disk 16, which, in turn, is keyed on a driven shaft 17. The shaft 17 is supported in position to extend lengthwise of a fixed lower casing section 18, which is supported from and at one side of the head portion or valve casing 11, and incloses the intermediate portion of the shaft 17 and the eccentric, or eccentrics 16 carried thereon, and removably securedon the upper open side portion of the casing section 18, is a closure section 19.

The outer end of the upper portion of the wall of the valve bore 12' is formed to provide an inwardly inclining oil duct or slotted recess 20 which is adapted to be registered by a similarly formed inlet opening "or port 21 provided in the outer end of the upper wall portion of the valve body 13 communicating the hollow interior of the latter.

Mounted on one of the side faces of the eccentric disk 16 slightly inward of the peripheral edge thereof, are several cut fins or cups 22, whose path of movement, during the rotation of the shaft 17 and the disk 16, is directly in line with the oil duct or recess 20, i

In the operation of an engine embodying the invention, oil having been placed within the fixed casing section 18, upon the starting up of the engine, the shaft 17 and the eccentric disk 16 will be rotated and a reciprocating movement imparted to the valve body 13', by means of the eccentric arm 15. During each revolution of the eccentric disk 16, the blades or cups 22 will dip into the body of oil in the lower casing section 18, and will throw the same directly toward and into the oil duct or recess 20, from which the oil will be discharged into the hollow interior of the valve body 13 through the inlet port 21, the movement of the eccentric disk 16 and the valve body 13, being so timed that the inlet port 21 will move into registry with the oil duct or recess 20 just as the blades or cups 22 reach, or nearly. reach the highest point of their movement, and from which point the oil is thrown therefrom and into the duct or recess 20. Thus, after the valve body 13 has been filled, the level of the oil will be maintained therein throughout the continued operation of the engine, or the life of the supply of oil within the casing section 18. For the purpose of filling the casing section 18 to a desired level of oil therein, and without necessitating the removal of the casing closuresection 19, an outwardly and upwardly curved filling pipe 23 is arranged to open through the outer wall of the section 18, and is provided with a removable closure cap 24, the level of the oil within the casing being determined by the height of the oil in the vertical leg of the filling pipe 23.

For the purpose of utilizing a portion of the coolingoil within the valve body 13, for the lubricating of the wall of the bore 12, an opening 25 is provided in the wall of the valve body at the inner end of the upper portion thereof, and this opening commun1-' cates with an annular groove 26, formed in the peripheral wall of the valve body, whereby, during the reciprocating movement of the valve body, oil will be ejected outwardly of the opening 25 and will flow around the groove 26 from opposite sides of the latter,

and, consequently effect a desired and thorough lubrication of the valve bore. This lubrication of the valve may be provided for both the intake and exhaust bores 12 and 12', and their respective piston valves 13 and 13', but preferably in the larger types of engine construction only, and then for the exhaust 12 and its piston valve13 alone, unless otherwise found to be desirable or necessary to similarly lubricate the intake bore 12 and its piston valve 13.

From the foregoing, it will be readil apparent that the invention provides or a novel form of valve cooling means, and one wherein the possibility of overheating a valve is practically eliminated, and consequently, all tendency for the same to stick is prevented, and wear thereon reduced to a minimum.

It is well understood that, while a preferred embodiment of the invention has been described in specific terms, and the parts thereof illustrated in details of construction and arrangement, various changes in and modifications of the same may be resorted to without departing from the spirit of the invention or the scope of the claims appended hereto.

Having thus fully described the invention, what is claimed, is

1. In an internal combustion engine a valve head provided with intake and ex haust valve bores, each provided at its outer end with a recess, hollow piston valve bodies mounted for reciprocatory movement in said bores and each provided at its rear end with an inlet lubricant duct adapted to register with the recess atone end of the reciprocatory movement thereof, means for reciprocating said valve bodies, a lubricant carrying casing secured to said valve head and inclosing said means and recesses and cups carried by said means for supplying lubricant from said casing into said recesses for discharging the same into said ducts.

2. In an internal combustion engine a valve head provided with intake and exhaust valve bores, each provided at its outer end with a recess, hollow piston valve bodies mounted for reciprocatory movement in said bores and each provided at its rear end with an inlet lubricant duct adapted to register with the recess at one end of the reciprocatory movementthereof, means for reciprocating said valve bodies, a. lubricant carrying casing secured to said valve head and inclosing said means and recesses, cups carried by said means for supplying lubricant from said casing into said recesses for discharging the same into said ducts, and each of said valve bodies having near its free end a peripheral groove and furtherhaving an outlet opening into said groove.

In testimony whereof, I afiix my signature hereto.

SWENEY MUNSON.

Ill 

